# WebFileTools > Your files stay in your browser. No uploads, no servers. Site (EN): https://coffin299.github.io/WebFileTools/ Site (JA): https://coffin299.github.io/WebFileTools/ja Source: https://github.com/coffin299/WebFileTools License: MIT ## Summary WebFileTools is a static GitHub Pages web app. File conversion and editing run in the browser. English URLs have no prefix; Japanese UI/OGP pages live under /ja/. There is no upload API for tool files. Optional site metrics (Google Analytics, visit counter) do not include user tool files. ## Tools - [Images → PDF](https://coffin299.github.io/WebFileTools/tools/images-to-pdf) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/images-to-pdf): Convert images into PDF files locally. - [PDF Merge](https://coffin299.github.io/WebFileTools/tools/pdf-merge) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/pdf-merge): Merge multiple PDFs in order. - [PDF Split](https://coffin299.github.io/WebFileTools/tools/pdf-split) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/pdf-split): Split or extract PDF pages. - [PDF → Images](https://coffin299.github.io/WebFileTools/tools/pdf-to-images) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/pdf-to-images): Render PDF pages as images. - [PDF Page Organizer](https://coffin299.github.io/WebFileTools/tools/pdf-page-organizer) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/pdf-page-organizer): Reorder, rotate, and remove pages. - [PDF Compression](https://coffin299.github.io/WebFileTools/tools/pdf-compression) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/pdf-compression): Light client-side PDF recompression. - [Image Converter](https://coffin299.github.io/WebFileTools/tools/image-converter) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/image-converter): Convert between image formats. - [Image Compressor](https://coffin299.github.io/WebFileTools/tools/image-compressor) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/image-compressor): Reduce image file size. - [Image Resizer](https://coffin299.github.io/WebFileTools/tools/image-resizer) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/image-resizer): Batch resize images. - [Image Cropper](https://coffin299.github.io/WebFileTools/tools/image-cropper) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/image-cropper): Crop images locally. - [Image Rotator](https://coffin299.github.io/WebFileTools/tools/image-rotator) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/image-rotator): Rotate images in batch. - [Metadata Remover](https://coffin299.github.io/WebFileTools/tools/metadata-remover) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/metadata-remover): Strip metadata by re-encoding. - [Contact Sheet](https://coffin299.github.io/WebFileTools/tools/contact-sheet) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/contact-sheet): Build a grid overview of images. - [Favicon Generator](https://coffin299.github.io/WebFileTools/tools/favicon-generator) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/favicon-generator): Create multi-size favicon.ico files. - [Batch Renamer](https://coffin299.github.io/WebFileTools/tools/batch-renamer) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/batch-renamer): Rename many files with a preview. - [File Information](https://coffin299.github.io/WebFileTools/tools/file-information) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/file-information): Inspect names, sizes, and metadata. - [Archive Tools](https://coffin299.github.io/WebFileTools/tools/archive-tools) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/archive-tools): Create or extract ZIP archives. - [Duplicate Finder](https://coffin299.github.io/WebFileTools/tools/duplicate-finder) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/duplicate-finder): Find duplicate files by hash. - [JSON Formatter](https://coffin299.github.io/WebFileTools/tools/json-formatter) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/json-formatter): Format, minify, and validate JSON. - [JSON ↔ YAML](https://coffin299.github.io/WebFileTools/tools/json-yaml) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/json-yaml): Convert between JSON and YAML. - [CSV ↔ JSON](https://coffin299.github.io/WebFileTools/tools/csv-json) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/csv-json): Convert between CSV and JSON. - [Base64](https://coffin299.github.io/WebFileTools/tools/base64) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/base64): Encode or decode Base64. - [Hash Generator](https://coffin299.github.io/WebFileTools/tools/hash-generator) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/hash-generator): Compute SHA hashes locally. - [UUID Generator](https://coffin299.github.io/WebFileTools/tools/uuid-generator) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/uuid-generator): Generate UUIDs in the browser. - [Timestamp Converter](https://coffin299.github.io/WebFileTools/tools/timestamp-converter) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/timestamp-converter): Convert Unix time and dates. - [Text Diff](https://coffin299.github.io/WebFileTools/tools/text-diff) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/text-diff): Compare two texts. - [QR Code](https://coffin299.github.io/WebFileTools/tools/qr-code) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/qr-code): Generate and read QR codes. - [URL Encode / Decode](https://coffin299.github.io/WebFileTools/tools/url-encode) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/url-encode): Encode or decode URL components. - [Regex Tester](https://coffin299.github.io/WebFileTools/tools/regex-tester) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/regex-tester): Test regular expressions locally. - [Markdown Preview](https://coffin299.github.io/WebFileTools/tools/markdown-preview) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/markdown-preview): Preview Markdown as you type. - [Discord Markdown Preview](https://coffin299.github.io/WebFileTools/tools/discord-markdown-preview) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/discord-markdown-preview): Approximate Discord-flavored Markdown. - [Character Count](https://coffin299.github.io/WebFileTools/tools/character-count) | [JA](https://coffin299.github.io/WebFileTools/ja/tools/character-count): Count characters, bytes, and tokens. ## Docs - [Privacy](https://coffin299.github.io/WebFileTools/privacy) · [JA](https://coffin299.github.io/WebFileTools/ja/privacy) - [Terms](https://coffin299.github.io/WebFileTools/terms) · [JA](https://coffin299.github.io/WebFileTools/ja/terms) - [Security](https://coffin299.github.io/WebFileTools/security) · [JA](https://coffin299.github.io/WebFileTools/ja/security) - [llm-full.txt](https://coffin299.github.io/WebFileTools/llm-full.txt)